fpga: spartan2: Avoid CamelCase

No functional changes.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
diff --git a/include/xilinx.h b/include/xilinx.h
index 00a585e..9d870b2 100644
--- a/include/xilinx.h
+++ b/include/xilinx.h
@@ -26,7 +26,7 @@
 
 typedef enum {			/* typedef Xilinx_Family */
 	min_xilinx_type,	/* low range check value */
-	Xilinx_Spartan2,	/* Spartan-II Family */
+	xilinx_spartan2,	/* Spartan-II Family */
 	Xilinx_VirtexE,		/* Virtex-E Family */
 	Xilinx_Virtex2,		/* Virtex2 Family */
 	Xilinx_Spartan3,	/* Spartan-III Family */